{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-28T10:53:54.449","vulnerabilities":[{"cve":{"id":"CVE-2021-39171","sourceIdentifier":"security-advisories@github.com","published":"2021-08-27T22:15:07.267","lastModified":"2026-06-17T04:03:14.560","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2."},{"lang":"es","value":"Passport-SAML es un proveedor de autenticación SAML versión 2.0 para Passport, la biblioteca de autenticación de Node.js. Anterior a la versión 3.1.0, una carga útil SAML maliciosa puede requerir transformaciones que consumen recursos significativos del sistema para procesar, y por lo tanto, resultando en un servicio reducido o denegado. Esta sería una manera efectiva de llevar a cabo un ataque de denegación de servicio. Esto ha sido resuelto en versión 3.1.0. La resolución consiste en limitar el número de transformaciones permitidas a 2."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"node-saml","product":"passport-saml","versions":[{"version":"< 3.1.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":1.4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-400"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:passport-saml_project:passport-saml:*:*:*:*:*:node.js:*:*","versionEndExcluding":"3.1.0","matchCriteriaId":"C05B72FD-D09E-4D1F-AE7C-F3E101B60045"}]}]}],"references":[{"url":"https://github.com/node-saml/passport-saml/pull/595","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://github.com/node-saml/passport-saml/pull/595","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}